Stone Harbor Hardware, Ball Knob, Privacy Function, Satin Nickel, HL200440 Stone Harbor Hardware Privacy HL200440 Privacy style knobs and levers are used to secure the interior rooms of a home. An inside turn button both locks and unlocks the hardware, which can also be unlocked from the outside in emergencies by rotating the exterior privacy mechanism. Perfect for master bedrooms, bathrooms, offices/dens, or anywhere privacy is needed. Premium finishes that will look great in your home for years to come. Features an easily adjustable latch to fit all standard door preparations (2-3/8" or 2-3/4" backset). Fits doors 1-3/8" to 1-3/4" thick. All hardware required for mounting is included. A round corner, square corner, and round drive-in latch faceplates are all included. Includes free screw post mounting guide for easy installation. ANSI/BHMA: Meets A156.2 Grade 3 requirements